NORTH AMERICAN CONCHOLOGY. 



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Page. Xame. 



466 Pisidium abditum Ilald. 



466 altile Anthony. 



466 compressum Prime. 



466 variabile Prime. 



466 ventricosum Prime. 



466 Venus astartoides Deck. 



466 Manhattensis Prime. 



468 Dentalium striolatum Stimpson. 



469 Bulla amygdalus List. 



B. striata Brug. 

 469 canaliculata Say. 



Subgenus Tomatina. 



var. Bullina canaliculata Say. 



Vblvaria canaliculata Say. 

 469 corticata Moll. 



Subgenus Cylichna. 



469 debilis Gould. 



Subgenus Aplustrum. 



470 formosa Stimpson. 



Pliiline formosa Stimpson. 

 470 Gouldii Couth. 



Subgenus Aplustrum. 

 470 insculpta To/t, n. 



Subgenus Haminea. 



B. solitaria Say. 



var. B. Reinhardi Holb. 

 470 lignaria Linn, (var.) 



Subgenus Scaphander. 

 470 nebulosa Gould (var.) 



470 obstricta Gould. 



Subgenus Tomatina. 

 470 oryza Totten. 



Subgenus Haminea. 



470 pertenuis Mighels. 



471 triticea Couth. 



Subgenus Cylichna. 

 471 virescens Sotcerby. 



Subgenus Haminea. 

 471 Helix exigua Stimpson. 

 473 Succinea obliqua Say. 



473 Texasiana Pfr. 



474 Planorbis multivolvis Case. 

 474 Physa vinosa Gould. 



474 Melania brevi-spira Anthony. 



474 monilifera Anthony. 



475 Odostomia insculpta De Kay. 



Locality. 

 Pennsylvania. 

 Ohio. 



Massachusetts. 

 Massachusetts. 

 Massachusetts. 

 Greenland. 

 New York. 

 Maine. 

 Gulf of Mexico. 



New Bedford. 



Greenland. 



Boston bay. 



Massachusetts. 



Boston bay. 



Rye, New York. 



Maryland. 



North America. 



B'ks of Newfoundland. 



Gulf of California. 

 Boston bay. 



Massachusetts. 



Cape Cod. 

 Boston bay. 



California. 



Boston. 



New York. 



Galveston. 



Michigan. 



Lake Superior. 



Ohio. 



Georgia. 



New York bay. 



